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        June 23, 2013

        Hadoop news and rumors, June 23, 2013

        Cloudera

        *Of course, there will always be exceptions. E.g., some formats can be updated on a short-request basis, while others can only be written to via batch conversions.

        Everybody else

        July 27, 2011

        Introduction to Zettaset

        Zettaset is confusing, but as best I understand:

        Read more

        July 10, 2011

        Hadoop futures and enhancements

        Hadoop is immature technology. As such, it naturally offers much room for improvement in both industrial-strengthness and performance. And since Hadoop is booming, multiple efforts are underway to fill those gaps. For example:

        (Zettaset belongs in the discussion too, but made an unfortunate choice of embargo date.)

        Read more

        July 6, 2011

        Hadoop hardware and compression

        A month ago, I posted about typical Hadoop hardware. After talking today with Eric Baldeschwieler of Hortonworks, I have an update. I also learned some things from Eric and from Brian Christian of Zettaset about Hadoop compression.

        First the compression part. Eric thinks 6-10X compression is common for “curated” Hadoop data — i.e., the data that actually gets used a lot. Brian used an overall figure of 6-8X, and told of a specific customer who had 6X or a little more. By way of comparison, it sounds as if the kinds of data involved are like what Vertica claimed 10-60X compression for almost three years ago.

        Eric also made an excellent point about low-value machine-generated data. I was suggesting that as Moore’s Law made sensor networks ever more affordable:? Read more

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